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Temperature
Regulators / Temperature Limiters
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Bimetal
Cutouts >
Online Tech Info
Types
R20/R22 are bimetal detectors and temperature regulators.
Types R30/R32 are temperature limiters (manual reset)
without trip free mechanism. The thermal response
works a bimetal snap element electrically connected
to the switch contact. The switch system is current
insensitive. The thermal switches react only to external
thermal effects.
Double
contacts ensure high switch performance and long service
life. The housing, base, and the mounting brackets
are voltage-free(Standard version: base and mounting
brackets are aluminium-plated steel). Heat transfer
occurs directly through the metallic base via convection,
radiation and conduction in gaseous and solid media.
R
20 | R 22 | R 30 | R 32 | R40
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PDF Tech Info, Schematics and More
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| Applications
Temperature regulation,
temperature monitoring, temperature limiting and indication
in electric appliances and industrial equipment, machinery
and process engineering. Examples: Vacuum
cleaners Electrical house-Ironing machines hold appliances,
Cooking equipment, Electronic circuits, Dampers, Machinery,
Heat radiators, Process engineering, Hot water heaters,
Industrial, electric Coffee machines elements, Egg
boilers, Electrical components, Electric appliances
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Technical Data |
| Type |
R
20 and R 22 |
R
30 and R 32 |
| Voltage
rating |
*
250 V 50-60 Hz |
250
V 50-60 Hz |
| Current
RES. |
*
10.0 A / *16.0 A |
16.0
A |
| Current
IND. |
6.3
A |
6.3
A |
| Max.
Load RES.
250 V 50-60 Hz
110 V 50-60 Hz
60 V DC
42 C DC
6, 12, 24 V DC |
16.0 A / 20.0 A
6.0 A
7.2 A
8.5 A |
20.0 A
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Contacts
Normally closed
Normally open |
 |
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| Switch
operations at In |
*
10 000
0-170° C / 16A
-
* 100 000
50-160° C / 10 A |
*200 |
| Contact
resistance |
<50
m |
<50
m |
| Nominal
temperature range |
0°
C to + 170° C |
+30°
C to + 160° C |
| Tolerance
but at least |
+/-3%,
+/-6%, +/-10%
+/-3, +/-5, +/-10 |
+/-3%,
+/-6%, +/-10%
+/-3, +/-5, +/-10 |
| Max.
permanent temp. |
*
175° C |
*
175° C |
Dielectric
strength
Housing to earth |
R
20:3000 V eff 50-60 Hz
R 22:4000 V eff 50-60 Hz |
R
30:3000 V eff 50-60 Hz
R 32:4000 V eff 50-60 Hz |
Dielectric
strength
across open contacts |
1500
Veff 50/60 Hz |
1500
Veff 50/60 Hz |
| Housing
Material |
Duroplast |
Duroplast |
| Housing
insulation |
on
request |
on
request |
| Overall
height (mm) |
R
20 9.5 +0.2
R 22 11.5 +0.2 |
R
30 9.5 +0.2
R 32 11.5 +0.2 |
Note: * Approved nominal values. Other
specific values on request.
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1/2"
Disc Bimetal Cutouts
8415
Mountain
Sights Avenue, Montreal (Quebec), H4P 2B8 Canada
